Sewing machine



FIG. 1 is a perspective view of a sewing machine showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dash-dash broken lines depict portions of a sewing machine in which the design is embodied that form no part of the claimed design.

The long dash-short dash broken lines are for defining the bounds of the claimed design only and form no part of the claimed design. 

CLAIM The ornamental design for a sewing machine, as shown and described. 